Gas-burner.



F. W. GAULT, JR. GAS BURNER. APPLICATION FILED MAR. 2. 1916.

mamwo Patented. July 3, 1917.

Fji FS- y INVENTOR.

UNITED earn FRANK W. GAULT, JR, or OKOLONA, KENTUCKY.

GAS-BURNER.

Specification of Letters Patent.

Patented July 3, 191 '7.

Application filed March 2, 1916. Serial No. 81,577.

T 0 all whom it may concern.

Be it known that I, FRANK W. GAULT, J r., a citizen of the UnitedStates, residing at ()kolona, in the county of Jefferson and State ofKentucky, have invented certain new and useful Improvements inGas-Burners, of which the following is a specification.

This invention relates to gas burners of the class used in various artsto produce intense degrees of heat.

An object is to provide a burner wherewith the character of the flamemay be arranged to suit varying conditions of service, which will beeconomical in the consumption of gas, which may be cheaply constructedand which will be durable in service.

With the foregoing and other objects in view, the invention consists ofthe novel construction and arrangement of parts illustrated in theaccompanying drawing, which forms a part of this specification, whereinis set forth an embodiment of the invention, but it is to be understoodthat such changes and modifications may be resorted to as come withinthe scope of the appended claims.

Referring to the drawings, wherein similar reference charactersdesignate like parts in the several views, Figure 1, is a side elevationof an embodiment, of the invention; Fig. 2, a longitudinal section ofsame, on

line 2-2 of Fig. 3; Fig. 3, a transverse section on line 33 of Fig. 2;Figs. 4, 5, and 6, 7 and 8, 9, perspective views and central verticalsections, respectively of modified forms of burner-plugs; Figs. 10, and11,

.central longitudinal sections showing modifled burner-plugs inposition.

Referring now more in detail to the drawing, the reference character 1--designates the burner proper, which comprises an induction tube, orsupply pipe 2, which may be connected to a suitable mixer wherein airunder suitable pressure is mixed with gas in suitable proportions;secured on the forward end of the induction tube is a hood -3, which maybe of such dimensions as the circumstances require, and a burner-plugl-, a preferred form of which is substantia-lly quadrangular in crosssection with screw threads on the corners thereof. The burner-plug maybepositioned in the end of the induction tube as shown in Figs. 2, 3, and10, or it may be positioned in the neck 5- 0f the hood, as shown in Fig.11. The burner-plug is provided with suitable means,

I such as screw threads -6'adapted to be engaged with internal screwthreads 7 in the tube, and with a plurality of facets 8, said facetsbeing arranged either parallel with the axis of the plug, as shown inFigs. 2 and 3, or at'an angle thereto as shown in Figs. 4 and 10. Thepresence of these facets form spaces 9 between the plugand the wall ofthe induction tube, through which the gas passes. The resulting flamebeing multilateral. If the facets are parallel with the axis of theplug, the resulting flame will be thrown straight forward forming a longslender flame. By inclining the facets the flame may be spread out inmeasure corresponding to the degree of inclination. A ledge, orprojection-10 may be placed across the forward end of the facets, whichwhile not of sufficient extent to deflect the flame, will impart theretoa fluttering or undulatory movement which increases the speed ofpropagation of the flame. In every installation of gas, for heatingpurposes, there are local conditions which require special character offlame to secure the greatest efliciency. My improved burner, lendsitself most readily to the provision of flames with variedcharacteristics. The plug is of material, such as cast iron, which mayreadily be shaped, and by means of a suitable tool, such as a file, theangle of the facets may be changed, the height of the ledge 10, reduced,or its inclination across the facets altered (see Figs. 4, and 5). Itmay. be extended from each of the facets or only from certain ones ofthem, a shoul-.

der 11 may be square as shown in Fig. 4, or sloping as shown in Fig. 5.Each such change altering the shape of the flame and imparting theretodiffering characterlstics.

The plug is provided with a central perforation, or passage, 12 whichproduces a round flame. The plug may be provided with an extension ortip 13 (see Flgs. 6, 7, and 10) provided with lateral slits, or openings14, which extend outward from the central perforation, and having apassage 15 slightly larger in diameter than the width of, and extendingdiagonally across the slits from the upper edge thereof 'to the centralpassage. The corrugated, or

roughened surface of the induction pipe,

produced by the screw threads 7, assist in admixing the gas and air. Theburnerplug may, for some purposes be provided with a plurality ofperipheral recesses 16, the

rear walls of which are arranged at an angle to the axis of the plug. Aplug of this construction may be reversed to serve with gas at eitherhigh or low pressure.

Having thus described my invention so that anyone skilled in the artpertaining thereto make and use the same, I claim:

1. In a gas burner, an interiorly screw threaded induction tube, aclosed hood attached thereto, and a burner plug positioned in said tube,said plug having a plurality of facets extending longitudinally thereofwith screw threads interposed between said facets.

2. In a gas burner, an internal screw threaded induction tube,.a closedhood attached thereto, and a burner plug positioned in said tube, saidplug having a plurality of facets extending the length thereof, withscrew threads between said facets, said facets being'arranged at anangle to the longitudinal axis of theplug. v

3. In a gas burner, an interiorly screw threaded induction tube, aclosed hood attached thereto, a burner plug positioned in said tube,said plug having a plurality of facets extending the length thereof withscrew threads between said facets adapted to be engaged in said tube,and a ledge, integral with the plug, disposed across the forward end ofa certain of said facets.

4. In a gas burner an interiorly screw threaded induction tube, a closedhood attached thereto, and a multi-lateral plug provided with screwthreads on' the angles thereof adapted to be engaged with the threads insaid tube.

5. In a gas burneran interiorly screw threaded induction tube, a closedhood attached thereto, a burner plug positioned in said tube, said tubehaving a plurality of facets extending longitudinally thereof, saidfacets being disposed at an angle to the longitudinal axis of the plug,and a ledge on the plug disposed across the forward end of a certain ofsaid facets. 1 p

6. In a gas burner, an induction tube, a hood, a multilateralburner-plug positioned 1n sa1d tube, and a tip on said plug, said plugand tip having a central passage therethrough and the tip having lateralslits extending outward from said central passage.

in said tube, the sides of said plug extending longitudinally of, anddisposed at an angle to the axis thereof, a ledge disposed across theforward end of certain of said sides, and a tip on said plug, said plugand tip having a central passage therethrough,

the tip having lateral slits extending outward fro-m saidcentralpassage.

9. A quadrangular burner plug provided with screw threads on the cornersthereof, and having a central chamber extended into the body of the plugfrom the rear end thereof and having a restricted passage Il)eadingthrough the plug from said cham- 10. A burner plug provided externallywith screw threads, a portion of said screw threads being removedforming a plane surface which extends longitudinally vof the plug, theplug having a chamber extending into the body thereof from the rear endthereof and having a restricted passage leading from said chamberthrough the plug.

11. A burner plug having a chamber extended into the body from the rearend thereof and having a plurality of passages leading from said chamberthrough the plug, screw threads on the periphery of the plug, portion ofsaid periphery being removed forming plane surfaces which lie in planesparallel with theaxis of the plug.

- FRANK w. GAULT, JR.

